vojght



Much 2o, 194s. y H. G, WGHT Ra 22,622

DOOR LOCK original Filed July 12, 1940 2 'sheets-sheet 1 March 20, 1945. H Q VQlGHT l l Re. 22,622.

DOOR LOCK Original Filed July 12, 1940 2 Sheets-Sheet 2.

i 77 70,-,72 I lo Ressued Mar. 20, 1945 i :noon Loox HeDryGJVoighHamden, lConn., assignoritsarzent.&-.C0mpany,l.New Haven.; .Gonne a ,cornoeSeriaillNo. .345,109,-.2July.12,11940. Application z-.Ifor -i-.eissuegAugustZL 1943,; SerlalfN o.,499,49.0

SJClims .This ainventionfrelates toidoorflo'ck's ori latches, -and ymore particularly toffe...lockl'fornaront;.door ,of 1.a fbuil'ding, .'r'lthongh I it wiiil @be :iun'derstoo'd that it may be employed inanylocation ini-which =is -desired =a Ilock #having vthe .characteristics emvbodied '-in'the present structure.

"The invention relates particularly v`iowa. sor-called tubular flock, Lor 'a iock:.:having'mftubularffor cylindrical fcasingwhich may 'be iinsertedthroughsa.

door. Such locks must comprise a relatively small number o'f parts; and'r themechanism thereof millstloel `reletiwfely-'simiale 'inl 'orierfl thatfirmay be housed'` inlthe' -rela.cively1small space` available initheoylindricalfcase. QA frontdoor'lo'ck' or latch =is^usully provided with a 4lat'chrbolirwhich @is prevented-Timm being lforcedV by--a.-tool inserted between'thef' door and the head -o'f thef'laitch'rblt'theidogging member l IcharacteritisJdesiriathleet be ableutodogthefout- `sideknobfso that the'flatch bolt'^maynot'--be "retractedi from the-outsiderby-meansv ofy thknbb, While -a,t' 4theI rsaune time-'providing Ejkey-2openalized ineansat'the ontiiide'-'f"cheftloor2 forfretracting theletcirloolt When' vthe door Iis "0n "latch" or when-"theoutside 'knob `vis dogged," it is desirable-that 'chewin- 'side `knob 'be `Ireefto `turn to-'Pretrzrcir the lai-,ch bolt, 'and also ."desirab1ewthat the 'latch'holt may be"free -`for retractionL by contact-with the =st`rike plate in orderthat'the doormay'beclosed. r-lin 'order itojfprovidenll `of'rthese' "functions in-fa-so called tubular lock; it is necessary toerrange the required mechanism incompact rela-tion, 'as Well .as to use the smallest'possible'number Jaimants.

One object ofl the ,abovef'invention' is theprovision .of a door'ilockofthe characterdescri'bed which comprises a 'relatively smial1"'n11mber e of parts and which :may be arranged' in na compact ,space whereby'the lock mechanism maybecarried in a tbularcase. i

A still 'further ...object of "'thednventon is `the provision' yof a llfront ,doorl lock having Fall (3f-the functions required of.. ai lock Iorthis. location; the mechanism of .whihf is so arranged .that itjmay be housed .in aiubularor. cylindrical case.

- .Astill'fur'ther objectofthe invention .is .the

provision` of. .aldoor lock having alatch bolt which isk held in predirecited Vposition.when the door 'is closed..by a dozging...member,. the, dogg'ingmember being controlled in turn' by a. 'dog-controlling @lungen-.ande providing ga Agelideewithinf .the -lock,=and aidjaiozzent'-v the :boltl stemfor. yoke, lwhich slidgefects t0 moveothe: dogitoqinoperative l.pm asition, .and-which slideiseinemeenxeteclby the roubaeksof. either .thefinnen-on outernknnbs.

11A still -.\;further object of `@the inventionr .isg the scribed-,in thegprecedingparagraph, iniwhichethe arabe-@dogged aasamst .turning @by 'llodaheseiandg other? ends fthe invention consists `inthemfioxrel-ieaturesaand', comblnationseof parts to yabe hereinaffteri.described.setrideclaimeik Irrlthe/accompallymgdrawings:

.1"Eig. elrisnarfnontf elevational viewfof aeflfgmemory.: .portionf-zofera door providedwwithl-ga. -lock embodyingmyiinvention; l

...@.Fig 12.2 sean @edge sof the. parts #show-n 'Figi/1';

@Rigi-3ds a.:sectionaleviewronxline{f3-+3 of Eig. v.2;

vfliigff 4211s .a2 viewiof'thezrlock With-L the cover l Aof Ithe casevremovetosshowthe interior-mechanism;

ifFigrz is a'fviewssimilar toiFigg 4":bnt; showing theapartsfimanotherposition;

-I'Ois alt-perspective Yview fetheflatbhedogvgingmember; **Fig. y llis#aisyperspective' 'view off-the rauxiliary yokeor stem A'-Wl'iitzhJ releasesf-thedogginglemember; and

4)especially Al:in Tis. '#3. "The jala-te i3 '-fris lprovided wardly of the portion I1. As will be explained later, the laterally turned portions or lugs I1 are designed t'o be operated by the roll-backs of the inner and outer knobs to withdraw or retract the' latch bolt in the usual manner.

The casing portions `Il and I 2 are provided with openings inwhichare rotatablymounted hubs and 2|, which hubs carry rollbacks' 22 aoaa and 22, respectively, these rollbacksv standing forwardly of the lugs I1 on the bolt stem. As

shown in Figs. 3 and 4, the hub 20 is provided 1 with a polygonal opening to receive acorrespondingly shaped spindle 23, which spindleis` in 'turn received in a polygonal opening'inthe' inner end of the shank 24 of the outer knob 25. The hub 2| threadedly received in the shank 2 1of the inside knob 28, the knob shank beingv secured against-A rotation on the spindle when it is properly posif tioned thereon by means of the set screw 29. As shown in Fig. 3,` the lspindle 26 of the inside knob is provided with a "stem vextending into vand through'thespindle 23 of the'outside knob, this lstem comprising astreadedl=portionv 30 which -threadedly and rotatably engages the spindle 23',

a shank portion 3| and a flattenedend portion 32,'5 the' purpose of which Willwbe explained'hereinafter.v lIt will be understood that the inner spindle 2 6 is at all times vrotatable independently of the spindle23- of the outside knob 25. f

At the'inside'of-the door is mounted the rose- 35, while a similar vrose 36 is mounted at the outside of the door, the latter carrying a tubular portion 31 which rotatably Yreceives the knob shank 24.4 The-knob 25 isthreadedly vsecured upon the knob'- shank, as shown atf38, a set screw 39 locking the parts against rotation, which screw is covered by a'shieldv 4U disposed betweenthe tubular portion 31of the rose and `the knob. Also,asshownf-inFig. 3, the shank 24 `is provided with an annular recess 4 Iy within which are received keys 42 of annular semi-circularrorm, the keys being held in the recess by a split ring 43 so as to secure 'thezknob shank and, knob within rthe portion y:i1 of the rose.` It will be understood that f after 'the spindle? comprising the outerportion 23 and inner portion. 26 is :positioned within the door; the outer :knob and rose may be placed against the side of the door, with the spindle portion 23 receivedinthe kllb shank,

and the parts secured inplaceby screws 44 (Fig. 7) passed through the inner rose35 and secured in threaded ylugs 45 carriedby. the outer rose, thus securingthe outer rose and knobr to the door with the knob free to rotate in the portion 31.

As also shown more particularly in `.|:'?igs. 1 v and 6, -a key-operatedzlock 46, whichfmay be o'f the ordinary pin tumbler type, is provided in the outside knob 25, this lock having arotatable key plug or barrel 41 Within the knob shank 24, this barrel having aty its inner end an elongated opening which loosely,receivesthe-'flattened end portion 32 of theinner spindle. rI he relative size and vshape of the opening 49 and spindle 32, as will be seen from Fig. 6, will allow partial rotation of one of these parts without aecting the other; that is to say,.there is a certain amount of lost motion between the two. As the spindle portion32 is secured to'the inner'spi'ndle, which is in turn fixed to the inner knob 28 by means of the screw 23, this lost motionwill permit sumcient rotation of the inner knob to retract the latch bolt without movement of the key plug 41.

ber 32 and through it effect rotation of the inner spindle 26 and thus retract the latch bolt.

From reference to Figs. 4 and 5 it will be ob'- served that the rollback 22 is larger than the rollback 22l so as to projectiorwardly therefrom, andthis forwardly projecting portion is provided with a notch or-recess adapted to receive a detent 5I on a dogging plunger 52 movably mounted inthe casing portions II and I2, and having threadedly secured thereto a button or vfngerpiece 53 projecting through the rose 35 at the inside of the door. By manipulating the 'member 53, the plunger may be pushed inwardly receives a polygonal spindle 26 which is.:v

or pulled outwardly to elet engagement or disengagement of the detent 5I in the notch 50. This serves to dog the hub 20 carrying the roll- :back 22, .and therefore dogs the outside knob against turning, while leaving the inside knob free to turn. It will .be understood that this dogging mechanism is shown in inoperative position in Fig. 3,. and tov move it to operative position it is only-necessary to push inwardly on the member 53 sofas to move the plunger 52 to the left, as shown in this figure. f

The portion l2- of the lockr case is provided with a post 55 which receives the screw I2, and within this post is mounted a. spring-pressed ball'detent 56 which engages a member 51 secured to the dogging plunger 52 to releasably hold this plunger in its outer orinner positions to which it may be moved.

. -The latch bolt shown inv Fig. 9 is normally urged to projected position by means of a spring lill` acting against the post 55 and received upon a member 6I secured to the latch bolt. In order Ithat the latch bolt may be dogged against being yforced when the door is closed, a dogging member `Ii2 is provided, which dogging member has anopening 63A within which is received the reduced upper end 64 of .the p ost 55 to pivot the dogging member thereon. `This memberis pro. vided with a laterally turned end or detent portion 65, which when in operative position engages behind a shoulder 66 on one of the legs of the yoke or stem of the latch bolt. This dogging member62 is normally urged to operative position by the spring 61, one end ofy which engages the doggingmernber v.below the pivot and the other end of which bears against the lock casing. yIn orderr to hold the latch dogging member in inoperativepositicn when the door is ,opened so that 'the bolt may be retracted by contact with the strike, a dog-controlling plunger 10 is provided, which plunger, as shown more especially in Figs. 3 and l2, is provided with a shoulder 1I engaging behindthe head of the latch bolt, and a cam member 12 adapted to engage above the por- .tion 65 of the dogging member 62, this dog-conso that the laterally turned end 65 does not engage behind the shoulder 66. When, however, the door is closed the dog-'controlling plunger 1U is held in retracted position by contact with the strike, as shown `in Fig. 5, and the 'cam12 is moved outof engagement with the member 65, allowingthe spring 61 to-'move thisl member 11D- 'movin'g'the flogging member62 tol inoperative lp'olsit-'ion -when it is 'deslr'edto lretract the latchlb'y as shownVin'Fig. 11. As illustrated' this member comprises leg portions 115 A'and '-16 Aconnectedgat tlieir'rea'r ends by lthe 'arcuate-shapedrnember 1 11, vwhich member is 'provided 'with-laterally lex- -tolie'overthe legs of .theboltstem"11F-between the shoulders I8 and the lugs I1, whereby tlfie T 'portionsand`19llieagainstthe lugs lil, andbetween these lugs and adjacentfsurfacesof fthe `carries a pin "80 which is "adaptedf-tofeh'g'age vfthe right, as Shown in Figs. 4land5,theitail piece-fai is moved upwardly, thus 'swinging .the member to movethe detent portion i65 -to inoperativelposition.

lIt will -be observed thatrth'e free-'end'.po'rtionsof 3themernbers "-15 iand YHi do'lnot Contact the :'fshoulyders 158 whenlthe members '1-8 and 119Jarefagainst the lugs ill, butJonthe otherv hand therel isla lost-r motion connection between these two 'lparts -be apparent that the members 18 and I9 lie in front of both rollbacks 22 and 22a, the portion 11 embracing the hubs 2U and 2|, so that Whether the latch is operated by means of the inside knob, the outside knob, or by means of the key (which operates the inside knob spindle), the auxiliary stem or yoke will be actuated and will kick ofi.

the flogging member B2. f

It will also be apparent that the plunger 52 may be moved to the left from the position shown in Fig. 3 until the detent 5I engages in the notch 50 to dog the hub 20 and prevent the opening of the door by the outside knob. At this time the latch will be free for operation by the inside knob, this being permitted by the lost-motion connection between the spindle portion 32 and the opening at the forward end of the 'key plug 41. At the same time the key plug is connected to the spindle 26 of the inside knob, so that by means of the key, the key plug may be rotated, and rotate the spindle 26 to retract the latch bolt.

Thus I have been enabled to provide with a minimum number of parts and within a compact quired of the usual front door lock, and which may be contained within a tubular case so that it may be readily mounted upOn :a door Without time-consuming mortising operations.

While I have shown and described a preferred embodiment of my invention, it will be understood that it is not to be limited to all of the details shown, but is capable of modification and variation within the spirit of the invention and within the scope of the appended claims.

What I claim is: i

l. In a door lock, a case, a latch bolt reciprocably mounted in the case, a bifurcated yoke connected 'to said 'boltgsald I.'ykeliawzing :flugsfiat 4iarear *portion Athereof fand .shoulders -fspacedlfrom 1said lugs, a "dogging member piv'otally mounted 'in' 'the'lcaseand fadapte'd'tofengag'eisaid'ibolt to :dog fithe Esame against retraction "when the d'oor closed, an auxiliary yoke mounte'dfon lsaidflbolt -yokefbetween'saidulugs Tand shoulders,'=and having l space a door lock which has all the functions re- Y :portions Sabutting said lugs, fand -knobeoperated :rollbacksin :the` case 'adapted ltoengage l:said lastznamed portions to m'ove --saidauxiliarysynkefand fsaid' bolt 'yoke "rearwardly to` retract thef-lbolhtand rsaid auxiliary yoke having a part -engaging ysalti -do'gging I member 'to' move the iatter `to inoperative position.

z2. In `afdoor 1lo'ck;:a case, "a :latch :boltl reciprocabl'y mounted vin the case; afbifurcatedifyoke ron- -nected to said l'bolt, us'aidyoke having :lugs fat ra rear portion 'thereof 'and "shoulders spaced from ,said lugs, a "'dogging 1 member ..pivotally m'ounted :in'the ca'se and adapted Ito engage ssaid -bolt --to :'d'og the same against `retraction whenthe :door is closed, anauxiliary yokefmoun'ted :on saidibolt y yoke between saidvlugs f and sshoulders, and-'having portions abutting said lugs, fand knob-'operated roll-backs inlthe case adapted to'enga'ge said last- 'named portions to move isaid auxiliaryyoke 'and said bolt yoke rearwardlyA to 'retract-:the boltfsaid auxiliary: 'yoke having a vpart yengaging said dogging member to move the latter to vinoperative position, jsaid casing 'i being of tubular 'form :and

.f-irisertable throughy an ,openingy in the sedge of'lthe door. f

3. In a door lock, a case, a latch bolt recipro cably mounted therein, inner and outer coaxial independently rotatable spindles, a knob upon each of said spindles, means for dogging the outer knob against operation, a key-operated `lock mounted in the outer knob, means connecting each of said spindles to the bolt for operating the latter, said outer spindle being hollow, and means rigidly secured to the inner spindle and extending through, and threadedly connected with, the outer spindle for connection with said lock whereby the latter may operate the inner spindle when the outer knob is dogged.

4. In a door lock, a case, a latch bolt reciprocably mounted therein, inner and outer coaxial independently rotatable spindles, a knob upon each of said spindles, means for clogging the outer knob against operation, a key-operated lock mounted -in the outer knob, means connecting each of said spindles to the bolt for operating the latter, said outer spindle being hollow, means rigidly secured to the inner spindle and extending through, and threadedly connected with, the outer spindle and having a lost-motion connection with said lock whereby the latter may operate the inner spindle when the outer knob is dogged, and the outer knob may have a limited rotation independently of the inner spindle.

5. Ina door lock, a case, a latch bolt reciprocably mounted in the case, a bifurcated yoke connected to said bolt, said yoke having lugs at a rear portion thereof and shoulders spaced from said lugs, a clogging member pivotally mounted in the case and adapted to engage said bolt to dog the same against retraction when the door is closed, an auxiliary yoke mounted adjacent said bolt yoke between said lugs and shoulders and having portions abutting said lugs,.a knob-operated rollback in the case adapted to engage said last-named portions to move said auxiliary yoke and said bolt yoke rearwardly to retract the bolt, said auxiliary yoke having a part engaging said dogging member to move the latter to inoperative position, and said shoulders being spaced from the adjacent end of the auxiliary yoke whereby inward pressure upon the bolt when the latter is dogged will eilect engagement of the bolt with said dogging member before eiecting movement of the auxiliary yoke.

6. Ina door lock, a case, a latch bolt reciprocably mounted in the case, a bifurcated yoke connected to said bolt, said yoke having lugs at a rear portion thereof and shoulders spaced from said lugs, a dqgging member pivotally mounted in the case and vadapted to engage said bolt to dog the same against retraction when the door is closed, an auxiliary yoke mounted adjacent said bolt yoke between said lugs and shoulders and having portions abutting-said lugs, a knob-operated rollback in the case adapted to engage said last-named portions to move said auxiliary yoke and said bolt yoke rearwardly to retract the bolt, said auxiliary yoke having a part engaging said rdogging member to move the latter to inoperative position, and said portions on the auxiliary yoke lying between said rollback and said lugs and for wardly of the latter whereby inward pressure on said bolt when the latter is dogged will eiect engagement of the bolt with said dogging member before effecting movement of the auxiliary yoke.

'1. In a door lock, a case, a latch bolt'reciprocably mounted in the case, a bifurcated yoke connected to said bolt, saidv yoke having lugs at.-

a rearv portion thereof, a dogging member pivotally mounted in the case and adapted to engage YIl tion, and said bolt yoke having a limited movement rearwardly independently of said auxiliary yoke before the bolt engages said clogging member whereby the latter yoke cannot be moved by inwardv pressure on the bolt when the latter is dogged.

8. In a door lock, a case, al latch bolt reciprocably mounted` therein, inner and outer coaxial .independently rotatable spindles, a knob upon each of said spindles, means for dogging the outer knob against operation, a key-operated lock mounted in the outer knob, ymeans connecting 'each of said spindles tothe bolt for operating the latter, said outer spindle being hollow, a member rigidly secured to the inner spindle and extending through, and threadedly connected with, the outer spindle for connection with said lock where- `by the latter may operate theinner spindle when the outer knob is dogged, and said key-operated v lock having `a slidable connection with said member. Y

HENRY G. VOIGHT. 

